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Air quality in Guelph
Air quality index (AQI) and PM2.5 air pollution in Guelph
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Guelph Air Quality Map
Real-time Guelph air pollution map
AIR QUALITY DATA CONTRIBUTORS
Nichols Family
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Pollen
What is the pollen count in Guelph today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Guelph?
| Weather | Broken clouds |
| Temperature | 77°F |
| Humidity | 59% |
| Wind | 8.8 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Chetwynd, British Columbia | 63 |
| 2 | Quesnel, British Columbia | 59 |
| 3 | Canmore, Alberta | 58 |
| 4 | Hamilton, Ontario | 55 |
| 5 | Kitchener, Ontario | 53 |
| 6 | Mississauga, Ontario | 53 |
| 7 | Toronto, Ontario | 52 |
| 8 | Lethbridge, Alberta | 49 |
| 9 | London, Ontario | 49 |
| 10 | Burlington, Ontario | 46 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Guelph aqi ranking
Real-time Guelph air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Guelph Old City | 53 |
| 2 | Ontario Ministry of the Environment Guelph | 53 |
(local time)
SEE WORLD AQI RANKING
US AQI
53
live AQI index
Moderate
Overview
What is the current air quality in Guelph?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 53 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 10µg/m³ | |
| NO2 | 3.4µg/m³ | |
!
PM2.5
x2
PM2.5 concentration in Guelph is currently 2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Guelph?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Guelph air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Friday, May 17 | Moderate 52 AQI US |  | 69.8° 51.8° |  6.7 mp/h |
| Saturday, May 18 | Moderate 53 AQI US |  | 77° 53.6° | 6.7 mp/h |
| Sunday, May 19 | Moderate 55 AQI US | | 77° 53.6° | 11.2 mp/h |
| Today | Moderate 53 AQI US | 70% | 77° 53.6° | 11.2 mp/h |
| Tuesday, May 21 | Moderate 64 AQI US | 90% | 71.6° 60.8° | 13.4 mp/h |
| Wednesday, May 22 | Moderate 60 AQI US | 70% | 77° 60.8° | 17.9 mp/h |
| Thursday, May 23 | Good 33 AQI US  | 70% | 69.8° 53.6° | 11.2 mp/h |
| Friday, May 24 | Good 11 AQI US | | 73.4° 51.8° | 8.9 mp/h |
| Saturday, May 25 | Good 33 AQI US | 70% | 73.4° 51.8° | 11.2 mp/h |
| Sunday, May 26 | Moderate 62 AQI US | 90% | 71.6° 57.2° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Guelph air quality data attribution
1Contributor
- Nichols Family
1 station
Individual Contributor
Data validated and calibrated by IQAirWhere is the cleanest air quality in Guelph?
AQI US, Metric